package com.mt.common.core.utils;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUnit;
import cn.hutool.core.date.DateUtil;
import org.apache.commons.lang3.time.DateFormatUtils;
import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate()
    {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate()
    {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime()
    {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow()
    {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format)
    {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date)
    {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts)
    {
        try
        {
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 计算当前时间差天数
     */
    public static Long getDatePoor(String oldDate)
    {
        SimpleDateFormat sdf = new SimpleDateFormat(YYYY_MM_DD);
        Date old = null;
        try {
            old = sdf.parse(oldDate);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        long nd = 1000 * 24 * 60 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = new Date().getTime() - old.getTime();
        // 计算差多少天
        long day =  (diff / nd);
        return day;
    }
    /**
     * 获取当前Date型的前后几天
     *
     * @return Date() 当前日期
     */
    public static Date getDate(Date date,Integer day)
    {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int d = cal.get(Calendar.DATE);
        cal.set(Calendar.DATE,d+day);
        return new Date(String.valueOf(cal.getTime()));
    }
    /**
     *  计算当前时间到某月某天的时间
     * @param birthStr 07-08
     * @return
     */
    public static Long birthDayOff(String birthStr){
        String vv=birthStr.replace("-","");
        String nowYear = DateUtil.format(new Date(), "yyyy");
        String birthday=nowYear+vv;
        DateTime birthdayTime = null;
        try {
            birthdayTime = DateUtil.parse(birthday, "yyyyMMdd");
        } catch (Exception e) {
            throw new RuntimeException("请检查传入的格式是否按照 01-04 格式传入");
        }
        String newDate = DateUtil.format(new Date(), "yyyyMMdd");
        DateTime newTime = DateUtil.parse(newDate, "yyyyMMdd");
        long betweenDay=0L;

        if (birthdayTime.getTime()>=newTime.getTime()){
            //没过生日
            Date birth= DateUtil.parse(birthday, "yyyyMMdd");
            //算区间
            betweenDay = DateUtil.between(birth, newTime, DateUnit.DAY);
        }else {
            //生日过了
            int i=Integer.valueOf(nowYear)+1;
            //下一年时间
            Date nextYear=DateUtil.parse(i+vv, "yyyyMMdd");
            //算区间
            betweenDay = DateUtil.between(newTime, nextYear, DateUnit.DAY);
        }
        return betweenDay;
    }
    //根据日期取得星期几
    public static String getWeek(Date date){
        Locale localeCN=Locale.SIMPLIFIED_CHINESE;
        SimpleDateFormat sdf = new SimpleDateFormat("EEEE",localeCN);
        String week = sdf.format(date);
        return week;
    }

    //获取近七天日期
    public static List<String> getDateList(Integer num) {
        List<String> dateList = new ArrayList<>();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        for (int i = 0; i < num; i++) {
            Date date = DateUtils.addDays(new Date(), -i);
            String formatDate = sdf.format(date);
            dateList.add(formatDate);
        }
        return dateList;
    }

}

